#337ABC#337ABC

#337ABC is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.6% C 0.124 H 249.6°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#337ABC
RGB	rgb(51, 122, 188)
HSL	hsl(209, 57%, 47%)
HSV	hsv(209, 73%, 74%)
CMYK	cmyk(72.9%, 35.1%, 0%, 26.3%)
CIE-LAB	lab(49.80, 0.28, -41.03)
CIE-LCH	lch(49.80, 41.03, 270.39°)
OKLab	oklab(56.64% -0.0434 -0.1166)
OKLCH	oklch(56.64% 0.124 249.6)
XYZ	xyz(17.3985, 18.2518, 50.1732)
Luminance	0.1825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#337ABC #BC7533

analogous

#33BCBA #337ABC #3336BC

triadic

#337ABC #BC337A #7ABC33

tetradic

#337ABC #BA33BC #BC7533 #36BC33

square

#337ABC #BA33BC #BC7533 #36BC33

split-complementary

#337ABC #BC3336 #BCBA33

monochromatic

#193C5C #265B8C #337ABC #5A98D2 #8AB6DF

Accessibility & contrast

On white

4.52

#337ABC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#337ABC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #337ABC

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##337ABC	#FFFFFF	#000000	##000000
##337ABC	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7DBF

Deuteranopia (green-blind)

#4871BB

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #337abc;
/* rgb */ color: rgb(51, 122, 188);
/* oklch */ color: oklch(56.6% 0.124 249.6);

Tailwind

colors: {
  custom: {
    50: '#7ca0d0',
    500: '#337abc',
    950: '#000000',
  },
}

SCSS

$custom: #337abc;
$custom-light: #7ca0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#337abc",
  "rgb": {
    "r": 51,
    "g": 122,
    "b": 188
  },
  "hsl": {
    "h": 208.905,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56637,
    "c": 0.1244,
    "h": 249.6
  },
  "luminance": 0.18254
}

Semantic roles & 50–950 ramp

primary

#337ABC

secondary

#C9A481

accent

#9147E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #337ABC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →